#lesson {
    border: 2px solid black;
    border-radius: 8px;
    padding: 10px;
    margin: 10px;
    cursor: pointer;
}

body {
    font-family: Arial, sans-serif;
    margin: 20px;
}

h1 {
    color: #333;
}

#lesson-list div {
    margin: 5px 0;
}

#auth {
    position: fixed;
    top: 0;
    right: 0;
    margin: 20px;
}